Horseshoe.



UNITED STATES I Patented July 21, 1903.

pP-ATENT OFFICE.

HORSESHOE.

SPECIFICATION forming part of Letters Patent No. 7 34,269, dated J uly21, 1903.

Application fiiea October 6,1902. serial N'o. 128,154. (No model.)

' scription of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The present invention relates to improvements in horseshoes, the objects of the invention being to provide for the ready application, removal, or renewal of calks employed to prevent slipping or to increase the wear'- ing qualities of the shoe.

The invention consists in a shoe having suitable sockets therein enlarged at the inner ends with calks having stems the bases of which fit the outer portion of the-sockets accurately, while the extremities ofgthe stems are bifurcated, provided with portions to enter the enlarged portions of the sockets and made rcsilient7 whcreby they may be forced into position or withdrawn, i as desired 01' found necessary, Without removing the shoe from the hoof and without the cmployment of special tools to effect the attachment.

The invention further consists in certain novel details of construction and combinations and arrangements of"the parts, all as will be now described, and pointed out particularly in the appended claims.

Referring to the accom'panying drawings, Figure 1 is a perspective view of a horseshoe with an implement in positionfor withdrawing one of the calks. Fig. 2 is perspective view of one of the calks. Fig. 3 is a sectional view through the shoe andone `of the calks, taken transversely of the line of strain or from side to side. Fig. 4: is a section in a plane at right angles to Fig. 3.

Like letters of reference in the several figures indicate the same parts.

The shoe itself (lettered A) is shown as of conventional form; but it is obvious thatthe form or means for attaching the shoe to the hoof of the animal is immateral in so far as the present invention is concerned. At the desired points-usually the heel and toe of the shoe-suitable sockets or apertures B are formed, preferably, though not necessarily, extending way through the shoe, and to strengthen and increase the thickness of the shoe around the sockets 'it is preferably provided with enlargements of integral fiatlfaced calks C, these being especially desirable on light and thin shoes when the body of the shoe would not afford the necessary strength, andvin all instances the construction raises the bases of the removable calks above the plane of the shoe, thereby facilitating the removal of Ithe calks, as will presentlyf appear.

' The sockets are preferably rectangular in cross-section, and the inner ends are somewhat'enlarged on one dimension, as shown in Fig. 8, forming Shoulders D for retaining 'the calks in position.

The calks' Emay be of any Vdesired configuration best adapted for the condition of the roads or the character of the horse or work to be performed by him, such calks in every instance, however, having stems E', the bases, at least, of'which fit the outer portion of the sockets accurately, while their ends are bifurcated, forming arms E2, each of which is provided with a shoulder or engaging portion 82 for coperation with the correspond- 'ing shoulder in the socket. The arms E2 are properly formed at the ends to readily enter the outer ends of Vthe sockets and are sufficiently resilient toV permit of their being sprung toward each other as they are driven intoposition and to spring outwardly With considerable force when the shoulders pass into the enlarged portion ofthe socket.

In order that the strains 'to which' the calk is subjected in use may fnot'work the Vsame loose, the bifurcation in the shank preferably extends lengthwise of the shoe. `In'this plane the shank is practically rigid, and the greatest breadth of the arms is opposed to strains tending to break the same. To 'still further strengthen the construction, the base of the shank is preferably solid.

The shank and its socket being rectangular in cross-section prevents theturning of the calk, and theshank being of'less length than vthe thickness of the shoe does not project on on, thus permitting of the entry beneath them of the prongs G of a elaw implement H, and by using the implement as a lever the calks may be readily removed, the Shoulders being sufiiciently inclined to permit of withdrawal by heavy direct pressure, but sharp enough to hold against all strains incident to use. For removing the toc-ealk, the implement is provided with a cross-bar I, which resting 011 the shoe atA each side forms a fulcrum. The opposite end of the implement is preferably in the form of a hammer K, With which the calks may be driven into place. Obviously With this invention the calks may be conveniently changed to suit the condition of the road without the necessity of removing the shoes 01' going to the shop to have the Work done. v

Ilaving thus deseribed my invenlion, what I claim as new, and desire to secure by Letters Patent, is

1. The combination With a horseshoehaving soekets formed therein enlarged at their innerends forming Shoulders, of ealks having shanks fitting said sockets and bifureated, the arms so formed being made resilient and provided With Shoulders eoperating With the shoulders in the socket, when the shank is forced into place to hold the ealk; substantially as (lescribed.

2. The combination With a horseshoe having sockets formed therein enlarged on each side at their inner ends to form Shoulders, of ealks having` shanks fitting said sockets and bifureated from front to rear of the shoe,

the arms so form ed being resilient, shouldered in proximity to their ends and adapted to be pressed toward each other in passin g into the socket, whereby said arms will automatically spread and the shoulders interlock with the shoulders in the socket When the calk is seated; substantially as (lescribed.

In combination with a horseshoe having sockets formed therein,-reetangular in crosssection, and enlarged at their inner ends to- Ward each side of the shoe to form Shoulders, of calks having shanks, rectangular in crosssection to fit the sockets and bifurcated in planes from front to rear of the shoe, the arms so formed being resilient and provided With Shoulders coperating With the Shoulders of the sockets When the ealks are seated; substantially as (lescribed.

The combination in a horseshoe having sockets therein provided With Shoulders near their inner ends running from front to rear of the shoe, of calks having shanks fitting said sockets and bifurcated, the arms so formed being made resilient and provided with shoulders near their inner ends adapted to coperate with the shoulders in the sockets when the shank is forced into place to hold the ealk; substantially (lescribed.

TOLBERT LANSTON.

lVitnesses:

ALEXANDER STEUART, THOMAS DURANT. 

